Adaptive Microphone Array Employing Calibration Signals. An Analytical Evaluation
Blekinge Institute of Technology, Department of Signal Processing1995 (English)Report (Other academic)
This report evaluates an adaptive microphone array which facilitates a simple built-in calibration to the environment and instrumentation. The method has been suggested for use in hands-free mobile telephones for both speech enhancement and acoustic echo-cancellation as well as speech recognition. The scheme has several advantages such as a simple calibration procedure, directed jammer suppression, versatile robust beamforming and reduced target signal distortion. The analysis employs noncausal Wiener filters yielding compact and effective theoretical suppression limits.
Place, publisher, year, edition, pages
Blekinge Tekniska Högskola Forskningsrapport, ISSN 1103-1581 ; 7
Speech Enhancement, Adaptive Beamforming, Microphone Array
IdentifiersURN: urn:nbn:se:bth-00022Local ID: oai:bth.se:forskinfo53CE544E3C7C113BC12568A3002CA9BBOAI: oai:DiVA.org:bth-00022DiVA: diva2:838035